diff --git a/MacPass/MPCollectionView.h b/MacPass/MPCollectionView.h
index 83e475a4..d40aa4e2 100644
--- a/MacPass/MPCollectionView.h
+++ b/MacPass/MPCollectionView.h
@@ -5,6 +5,20 @@
 //  Created by Michael Starke on 18.09.17.
 //  Copyright © 2017 HicknHack Software GmbH. All rights reserved.
 //
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
 
 #import <Cocoa/Cocoa.h>
 
diff --git a/MacPass/MPCollectionView.m b/MacPass/MPCollectionView.m
index 7f4014d1..b6bc68ba 100644
--- a/MacPass/MPCollectionView.m
+++ b/MacPass/MPCollectionView.m
@@ -5,6 +5,20 @@
 //  Created by Michael Starke on 18.09.17.
 //  Copyright © 2017 HicknHack Software GmbH. All rights reserved.
 //
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
 
 #import "MPCollectionView.h"
 
diff --git a/MacPass/MPCustomFieldTableView.h b/MacPass/MPCustomFieldTableView.h
index 05bb6f62..5933578b 100644
--- a/MacPass/MPCustomFieldTableView.h
+++ b/MacPass/MPCustomFieldTableView.h
@@ -5,6 +5,20 @@
 //  Created by Michael Starke on 11.09.18.
 //  Copyright © 2018 HicknHack Software GmbH. All rights reserved.
 //
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
 
 #import <Cocoa/Cocoa.h>
 
diff --git a/MacPass/MPCustomFieldTableView.m b/MacPass/MPCustomFieldTableView.m
index 307392f3..512d36aa 100644
--- a/MacPass/MPCustomFieldTableView.m
+++ b/MacPass/MPCustomFieldTableView.m
@@ -5,6 +5,20 @@
 //  Created by Michael Starke on 11.09.18.
 //  Copyright © 2018 HicknHack Software GmbH. All rights reserved.
 //
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
 
 #import "MPCustomFieldTableView.h"
 
diff --git a/MacPass/MPPluginTabelCellView.h b/MacPass/MPPluginTabelCellView.h
index f653aa49..ff5dd11c 100644
--- a/MacPass/MPPluginTabelCellView.h
+++ b/MacPass/MPPluginTabelCellView.h
@@ -5,6 +5,20 @@
 //  Created by Michael Starke on 17.11.17.
 //  Copyright © 2017 HicknHack Software GmbH. All rights reserved.
 //
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
 
 #import <Cocoa/Cocoa.h>
 
diff --git a/MacPass/MPPluginTabelCellView.m b/MacPass/MPPluginTabelCellView.m
index 40e63523..5073498b 100644
--- a/MacPass/MPPluginTabelCellView.m
+++ b/MacPass/MPPluginTabelCellView.m
@@ -5,6 +5,20 @@
 //  Created by Michael Starke on 17.11.17.
 //  Copyright © 2017 HicknHack Software GmbH. All rights reserved.
 //
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
 
 #import "MPPluginTabelCellView.h"